8-axis Cube Core (assembly)

Note: this thing is not a complete puzzle, this is just a core

Description

I needed a 8-axis core for my Redi Cube clone. Usually 3D printed cores do not provide enough strenght and tend to crack on layers. I searched for a simple design (at least simple for printing), that is strong enough and also provide a way to tune tensioning. Here it is.

Pros:
- Uses regular rubik's cube core, screws and springs
- Easy for printing
- All springs mechanism is located inside the core. Attached p